Finding the Fourth Proportional to 106,547.68, 159,969.20 and 53,994.08
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Solution
The fourth proportional to 106,547.68, 159,969.20 and 53,994.08 is: 81,065.96
Step by Step Solution
- Step 1: Write the proportion equation
106,547.68 : 159,969.20 = 53,994.08 : x - Step 2: Convert to fraction form
106,547.68/159,969.20 = 53,994.08/x - Step 3: Cross multiply
106,547.68x = 159,969.20 × 53,994.08 - Step 4: Simplify right side
106,547.68x = 8,637,389,782.34 - Step 5: Solve for x
x = 8,637,389,782.34/106,547.68 - Step 6: Final answer
x = 81,065.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.